CVE-2026-47333

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 28, 2026

Last Modified

June 9, 2026

Advisory Details (1)

Auto-updated May 28, 2026
Patch available.

Vendor Advisories for CVE-2026-47333(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(12)

Data Freshness Timeline

(refreshed 11× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 336 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 236 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-10-18 03:36 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-10-17 12:49 UTCEG score recompute
  6. 2026-10-17 12:49 UTCVendor advisory
  7. 2026-10-17 12:49 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-10-12 16:02 UTCEG score recompute
  13. 2026-10-11 19:44 UTCEG score recompute
  14. 2026-10-11 16:59 UTCEG score recompute
  15. 2026-10-11 14:24 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  17. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  19. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  24. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
Show 75 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  2. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  3. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  4. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  5. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  6. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-09-14 06:39 UTCEG score recompute
  10. 2026-09-14 06:39 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  11. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-08-25 04:39 UTCEG score recompute
  25. 2026-08-25 04:39 UTCVendor advisory
  26. 2026-08-25 04:39 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-08-23 14:27 UTCEG score recompute
  28. 2026-08-23 14:27 UTCVendor advisory
  29. 2026-08-23 14:27 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  30. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  31. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  32. 2026-08-21 15:24 UTCEG score recompute
  33. 2026-08-21 15:24 UTCVendor advisory
  34. 2026-08-21 15:24 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-08-20 21:36 UTCVendor advisory
  37. 2026-08-20 21:35 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  38. 2026-08-20 10:43 UTCEG score recompute
  39. 2026-08-20 10:43 UTCVendor advisory
  40. 2026-08-20 10:43 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  43. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-08-17 07:57 UTCVendor advisory
  45. 2026-08-17 07:57 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  46. 2026-08-16 15:09 UTCEG score recompute
  47. 2026-08-16 15:09 UTCVendor advisory
  48. 2026-08-16 15:09 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  50. 2026-08-16 02:33 UTCEG score recompute
  51. 2026-08-16 02:33 UTCVendor advisory
  52. 2026-08-16 02:33 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  55. 2026-08-14 22:39 UTCVendor advisory
  56. 2026-08-14 22:39 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-08-14 11:47 UTCVendor advisory
  58. 2026-08-14 11:47 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-08-14 00:55 UTCEG score recompute
  60. 2026-08-14 00:55 UTCVendor advisory
  61. 2026-08-14 00:55 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  63. 2026-08-13 08:02 UTCVendor advisory
  64. 2026-08-13 08:02 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-08-12 20:23 UTCEG score recompute
  66. 2026-08-12 20:23 UTCVendor advisory
  67. 2026-08-12 20:23 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  68. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  69. 2026-08-12 09:29 UTCVendor advisory
  70. 2026-08-12 09:29 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  71. 2026-08-11 22:35 UTCEG score recompute
  72. 2026-08-11 22:35 UTCVendor advisory
  73. 2026-08-11 22:35 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-08-11 11:43 UTCVendor advisory
  75. 2026-08-11 11:43 UTCGHSA enrichmentGHSA-79jw-477r-jj6f · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-47333?
CVE-2026-47333 is a high-severity vulnerability; its CVE record was published on May 28, 2026. Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data…
When was the CVE record for CVE-2026-47333 published?
The CVE record for CVE-2026-47333 was published on May 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 9, 2026; the record at its source may have been updated since.
Is CVE-2026-47333 actively exploited?
CVE-2026-47333 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-47333?
CVE-2026-47333 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-47333?
A fix for CVE-2026-47333 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-47333 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-47333

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